Occluding device and method of occluding fluid flow through a body vessel

Abstract

An occluding device for occluding fluid flow through a lumen of a body vessel. The device comprises a coil and fibers attached to the coil. The coil has about 5 to 60 grams of initial tension to facilitate the coil to fold when deployed. The fibers extend from the coil at a length.

Description

CROSS-REFERENCE TO RELATED APPLICATIONS[0001]This application claims priority to U.S. Provisional Application No. 60 / 485,306 filed Jul. 3, 2003, entitled “Occluding Device and Method of Occluding Fluid Flow Through A Body Vessel.”BACKGROUND OF THE INVENTION[0002]1. Field of Invention[0003]The present invention relates to medical devices. More particularly, the invention relates to occluding devices and methods of occluding fluid flow through a body vessel.[0004]2. Background of the Invention[0005]Pushable fibered coils have been used as a primary occluding device for treatment of various arteriovenous malformations (AVM) and varicoceles, as well as for many other arteriovenous abnormalities in the body. Occluding devices are also used to repair abnormal shunts between arteries and veins, prevent or reduce blood flow to tumors, stop hemorrhaging as a result of trauma, and stabilize aneurysms to prevent rupture. Pushable fibered coils may be configured in a variety of sizes with varyi...

AI Technical Summary

Benefits of technology

The present invention is an improved occluding device and method for blocking fluid flow through a body vessel. The device has a low initial tension, making it easier to fold across the vessel during deployment. It is designed to resist reformation back to its original shape after deployment. The device has an extended length for accurate deployment and is held together by the initial tension of the coil member. The device includes fibers that are attached to the coil and spaced apart from each other, allowing for better accuracy in blocking fluid flow.

Problems solved by technology

Many medical procedures for occluding blood flow through an artery or vein require a number of coils, since a single coil or two may not be sufficient to effectively occlude blood flow through a lumen of an artery or vein.

In some instances, these procedures may involve an undesirable amount of additional time and costs.

The helical shape of the coils creates an undesirable opening through which fluid may flow, thereby requiring additional coils to be deployed in the body vessel.

Due to the short length of pushable fibered coils, a practitioner may experience difficulty in accurately deploying a coil at a desired location in a body vessel.

Additionally, due to the short length of pushable fibered coils, there is a concern that current coils are difficult to advance through a catheter.

As a result, the coil has an enlarged diameter to be advanced through the catheter, thereby creating an undesirable resistance to the practitioner.

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